Your CD key, should be on a printed sticker on the back of the manual, just inside the DVD case, or similar such places. If you bought the game from a shop, then I would suggest asking them where your CD key is, as a friend of mine recently bought TRS2010 retail, and like you, did not recieve a CD key. If all else fails, I'd contact the Auran help desk, and they'd be glad (I'm sure) to help you out.